Frequently Asked Questions
Are all your staff qualified?
Yes all Electricians employed by Guild & Spence Electrical must be fully registered. All apprentices are undergoing training and are actively supervised during their employment with Guild & Spence Electrical.
Are Guild & Spence 'Master Electricians'?
Yes, Guild & Spence Electrical belongs to Master Electricians giving our customers confidence that all work is completed to the highest standard.
Are you able to quote my job first / do you charge for a quote?
Yes we are! Contact us and we will provide a full quote free of charge.
Are you IQP qualified?
Guild & Spence Electrical employs specialist IQP (Independently Qualified Persons) qualified staff.
Can you help with the electrical design of a building?
Yes, Guild & Spence Electrical has staff who can design any electrical installation including all types of lighting and power reticulation from houses to large commercial buildings, rural and underground services.
Do I have to install a downlight that can be covered with insulation?
No, there is no requirement in the standard that states that a downlight has to be covered with insulation. As long as it has been tested and rated and carries either a CA135 or CA80 classification then you can abut to the fitting only, leaving the top of the fitting exposed.
Do you certify your work?
All of the work carried out by Guild & Spence is self certified by the registered electrician who carries out the work and we then issue a Certificate of Compliance. We also employ registered electrical inspectors for work that requires further inspection.
Do you have a dedicated service department?
Guild & Spence Electrical have 7 dedicated staff in the service department and we aim to give continuity of service by sending the same electrician to your site wherever possible.
Do you have someone on call after hours if I have an electrical fault that requires urgent repair?
Yes, Guild & Spence has both a registered electrician and a specialist technician on-call 24hrs 365days a year. Please call 021 951 596 for any after hours service.
Does every downlight fitting have to be fitted with a thermal cut-out?
No, a thermal cut-out is not the only means of compliance, however they are an economical and reliable item frequently employed at the manufacturer’s discretion and primarily used to ensure a fitting achieves one of the above listed classifications. Some insulation providers have recommended using only fittings with thermal cut outs; this would appear to be a misguided recommendation. A classification as above is not dependant on the use of a thermal cut-out.
Is your work guaranteed?
All of the workmanship and new materials supplied by Guild & Spence Electrical come with a warranty.
What are the new downlight classifications I should be looking for?
Downlight classifications as described AS/NZS60598.2.2 Amendment A
What do I need to know about insulation in the installation of down lights?
The majority of the market appears to be held by mineral glass fibre types; however insulation comprised of other materials such as polyester and natural fibre is available. These materials generally have a lower ignition temperature than glass fibre and they should be used only if the supplier’s performance specification indicates they are safe to use with the down lights of your choice. It has long been recognized internationally that 90degC has been a threshold below which building materials should not go with regard to ignition temperature. If in any doubt about the materials involved you should check and confirm with either the manufacturer of the insulation product or of the fitting itself, to ensure their product can be installed in accordance with the new standard. You need to check the insulation manufacturer’s instructions to ensure their product is safe when installed alongside fittings approved to the new classifications. In summary what does this mean for down light installations?
What happens if I cover a CA ‘abutted only’ rated down light?
Provided that the lamp in use complies with the manufacturer’s recommendations, a safe situation will be maintained. Under the new standard all fittings are tested under abnormal conditions which assume the fittings may at some point be inadvertently covered fully with insulation or other material or an incorrect lamp fitted. Covering such newly rated fittings, (although not hazardous to the installation) may however result in implications for the fitting itself. It is likely that short lamp life will be noted and nuisance tripping may occur if the fitting has a thermal cut-out or the fitting may fail completely, but in a safe mode. High wattage LED’s (for example) may operate at higher than designed temperatures which may then shorten the rated lamp life of the fitting (speak to the fitting manufacturer for more detail in this instance).
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